/* -*- coding: utf-8 -*-
 *
 * 1313.cc:  No.1313 N言っちゃダメゲーム (4) - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 200000;

/* typedef */

/* global variables */

char s[MAX_N + 4];
int ds[MAX_N + 1], dss[MAX_N + 2];

/* subroutines */

/* main */

int main() {
  int n, k;
  scanf("%d%d%s", &n, &k, s + 1);
  s[0] = 'o';

  dss[n + 1] = 0;
  ds[n] = dss[n] = 1;

  for (int i = n - 1; i >= 0; i--) {
    if (s[i] == 'x') ds[i] = 1;
    else {
      int j = min(i + k, n) + 1;
      ds[i] = (dss[i + 1] - dss[j] == j - i - 1) ? 0 : 1;
    }
    dss[i] = dss[i + 1] + ds[i];
  }

  if (ds[0] == 0) puts("0");
  else {
    for (int i = 1; i <= k; i++)
      if (ds[i] == 0) printf("%d\n", i);
  }
  return 0;
}